Home / 2,137.15-3,202.20-1,313.69

Finding the Fourth Proportional to 2,137.15, 3,202.20 and 1,313.69

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Solution

The fourth proportional to 2,137.15, 3,202.20 and 1,313.69 is: 1,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.15 : 3,202.20 = 1,313.69 : x
  2. Step 2: Convert to fraction form
    2,137.15/3,202.20 = 1,313.69/x
  3. Step 3: Cross multiply
    2,137.15x = 3,202.20 × 1,313.69
  4. Step 4: Simplify right side
    2,137.15x = 4,206,682.11
  5. Step 5: Solve for x
    x = 4,206,682.11/2,137.15
  6. Step 6: Final answer
    x = 1,968.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.